Magnesium diboride superconductors used in wind turbines and other generators
Ask HN: What's the next big thing that few people are talking about?
981–990 of 1001 posts
Re: Ask HN: What's the next big thing that few people are talking about?
#982Real holographic display : To create an aerial hologram [or a 3d image in space if you will], you need something that will emit light at precise locations throughout a given volume. I'm investigating the use of Moller electron scattering[0] to create voxels in a 3d coordinate system. Two electron beams crossing and colliding will emit photons [voxels]. If you can orchestrate collisions in a very fast fashion at vario…
I'm curious if you've seen the work coming from Dr. Smalley's lab in Texas (don't remember which school ATM). They're using cellulose with light trapping techniques to simply move particles in the air and reflect light off of that. I don't have any links on me at the moment but it shouldn't be too hard to find details on Google.
Excuse the delayed reply. No, my friend. No relationship.
I vaguely remember hearing about that approach. Dr. Smalleys seems to be on the right track, since he implicitly recognizes that voxels must be created in 3d coordinates.
My proposal [yes, about a real image in space, not a hologram - posters are right to correct me] is simpler. It leverages a recognized physical principle, the aforementioned Moller scattering.
The problem, as pointed out by others in this child branch, is that having electrons collide is difficult, on account of their very small cross section. But it is doable. Somebody evoked a CRT. Exactly. The first prototype could be achieved, as far as a proof of concept goes, with only two orthogonal beams, generating exactly one voxel at the precise location where they cross.
Granted, in the beginning of development the device will be ugly, heavy and energy hungry. Use cases: automotive, aeronautical industries, architecture, physics, logistics, etc, etc. With time, home entertainment and the metaverse.
Without generating 3d-localized voxels it is impossible to construct a 3d display. Holograms only go so far.
Regards
Re: Ask HN: What's the next big thing that few people are talking about?
#983I don't know about "big" in terms of a viral hit, but in terms of what will change in our day-to-day experience... Here are some wild guesses, mostly along the theme of a societal conversation about and re-thinking of "sustainability" on nearly all levels. * Robotic carts that follow you around when shopping in dense, pedestrian oriented areas and/or stores. Might go hand in hand with the rapid normalization of e-bik…
Voice recognition is the technology of the future. And always will be.
Re: Ask HN: What's the next big thing that few people are talking about?
#984Mid-level AI Knowledge Worker Apocalypse. There's been a few mentions of this idea in specific terms in this thread, but I haven't seen anyone really express the big idea yet. Which is: We won't have to wait for the proverbial AGI Singularity to feel the devastating impact that AI is going to have on society. It might take another decade to start, but then the devastation will begin. Anyone who works at a desk is at…
Relevant primer: Humans need not apply (2014) [1]
Re: Ask HN: What's the next big thing that few people are talking about?
#985Neuralink. I can see it being the next huge ground-laying technology like the internet or smartphones. Imagine developing apps for people to use in their brain, it's next level. But probably 20 years away.
Re: Ask HN: What's the next big thing that few people are talking about?
#986Using power from solar panels to synthesize food (or at least, food components like starch). It turns out this can be done much more efficiently than photosynthesis. https://phys.org/news/2021-09-chinese-scientists-starch-synt... I bet this will lead to a agricultural revolution similar in magnitude to the Haber-Bosch process. It will also soften some of the impacts from climate change, both by improving food securit…
come on, where have you guys been last couple weeks? It's all over HN front page, search 'Solein'.
Re: Ask HN: What's the next big thing that few people are talking about?
#987Earlier quoted context omitted.
I think the recent electric scooter boom and subsequent pushback by communities shows that: - There is (IMHO huge ) pent-up demand for last-mile style electric transportation: scooters, bicycles, etc. - The electric drive technology is starting to reach a point where it can support a whole new space of designs that make this sort of transportation appealing to a wide variety of users (i.e. not just fit young adventur…
I am amazed by the Bakfiets, but i am confused at why delivery guys aren't already using it, there must be some reason for why these are unusable in other countries, like, here in italy we see delivery guys everyday and i think that if someone found it useful they would've already started using it, so, why not? What is keeping people from using the Bakfiets? There MUST be a reason for this.
I think in Italy there is still a cultural barrier
Re: Ask HN: What's the next big thing that few people are talking about?
#988Dog vasectomy. Email me
Re: Ask HN: What's the next big thing that few people are talking about?
#989Hey everybody, at the time I’m posting this, four of the top five comments are about energy. Many people are in fact talking about the climate crisis.
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Re: Ask HN: What's the next big thing that few people are talking about?
#990Rebellion against the Surveillance Capitalism/State. We understand that granular metrics are needful for tuning an information system. Treating a society like an information system is totalitarian. Over time, the percentage of society rejecting totalitarianism will tend toward 100%
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